UNIVERSITE LILLE 1 - SCIENCES ET TECHNOLOGIES Patent applications |
Patent application number | Title | Published |
20150139595 | DEVICE FOR CONVERTING THE TRANSVERSE SPATIAL PROFILE OF INTENSITY OF A LIGHT BEAM, PREFERABLY USING A MICROSTRUCTURED OPTICAL FIBRE - A device for converting transverse spatial profile of intensity of a light beam, using a microstructured optical fiber. Transverse dimensions of the fiber vary longitudinally and both its ends have opto-geometrical parameters such that at the wavelength of the beam the fiber has a fundamental mode having two different profile shapes at its two ends. Thus by introducing the beam with one of the profiles through one of the two ends, the beam emerges through the other end with the other profile, whose shape is different from that of the profile of the introduced beam. | 05-21-2015 |
20150045890 | INTERVERTEBRAL DISC PROSTHESIS MADE FROM THERMOPLASTIC MATERIAL HAVING GRADUATED MECHANICAL PROPERTIES - An intervertebral disc prosthesis comprises a structure having a rigid upper plate, a rigid lower plate, and a core inserted between said plates, the structure being made from thermoplastic material, the core further comprising a thermoplastic monomaterial having graduated elastic and damping properties. According to one alternative, the core is composed of an elastomeric central nucleus surrounded by one or more rings which are referred to as rings having ranks j relative to the core, and which are more rigid. | 02-12-2015 |
20140233900 | Microstructured Optical Fibre Having A Large Core And A Flattened Fundamental Mode, Production Method Thereof And Use Of Same In Laser Microfabrication - The fibre comprises a core ( | 08-21-2014 |
20120330049 | METHOD FOR PREPARING ACROLEIN FROM GLYCEROL OR GLYCERINE - The invention relates to a method for preparing acrolein from glycerol or glycerin, according to which dehydration of glycerol or glycerin is carried out in the presence of a catalyst which consists in at least one silica modified with zirconium dioxide, titanium dioxide or tungsten trioxide or any combination of these oxides, and a heteropolyacid. This method may be used for making 3-(methylthio)propionic aldehyde (MMP), 2-hydroxy-4-methylthiobutyronitrile (HMBTN), methionine or its analogs, from acrolein. | 12-27-2012 |